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    American Chemical Society
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    In this activity on page 2 of the PDF, learners discover how color changes can help scientists distinguish between acids and bases. Learners create colorful rainbow trout artwork using universal...

    $10 - $20 per student Ages 6 - 11 10 to 30 minutes
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    WGBH
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    Professor John Endler traveled to Trinidad in the 1970s to study wild guppies. In this activity, learners take part in an online simulation of Endler's work. Learners collect data, formulate a...

    1 cent - $1 per group Ages 11 - adult 45 to 60 minutes
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    Make
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    In this activity, learners create a sealed, mini ecosystem that supplies freshwater shrimp with food, oxygen, and waste processing for at least three months. Learners will collect water, amphipods,...

    Over $20 per student Ages 8 - 18 1 to 12 months
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    The Exploratorium
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    The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead. Natron is made up primarily of sodium carbonate (a very efficient, but...

    $5 - $10 per group Ages 8 - 18 1 to 4 weeks
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    Lawrence Hall of Science
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    In this activity, learners observe live fish in tanks to consider how their body structures are related to their behaviors and habitats. The activity is written for use in an aquarium, but it can...

    $5 - $10 per group Ages 4 - adult 10 to 30 minutes
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    Lawrence Hall of Science
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    In this activity, learners cut out and assemble wheels to explore how variations in fish body structures (mouth shape/position/teeth, body shape, tail shape, and coloration patterns) allow fish to...

    1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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    Centers for Ocean Sciences Education Excellence
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    In this activity, learners model, on a human-sized board game, how changes in water temperature may affect fish distributions and, ultimately, fisheries. This lesson focuses on how climate change...

    $5 - $10 per group Ages 11 - 18 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    This activity is on page 8 of the pdf, part of the Sea Life Discovery Box. This is an activity exploring the characteristics of fish. Learners are asked if they have seen a fish and what elements...

    $1 - $5 per group Ages 4 - 6 10 to 30 minutes
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    University of Nebraska State Museum
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    This marine biology activity (on pages 11-17) introduces learners to kelp (seaweed) forests that grow in the ocean and are home to many species of sea animals. Learners construct a forest make of...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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    PBS
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    In this math lesson, learners apply the concepts of ratio and proportion to the capture-recapture statistical procedure. Learners are given containers (the bay) and an unknown number of fish-shaped...

    $5 - $10 per group Ages 11 - 14 45 to 60 minutes

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